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3. Starting up
3.1 Compressed air connection
Function and service life largely depend on the condition and pressure of the compressed air supplied. Excessive
moisture or dirt particles in the compressed air will destroy the motor. A high percentage of condensate in the
compressed air will cause a slight rust deposit in the motor and the air outlet muffler will get covered by ice during
air expansion.
Therefore, when starting the compressed air motor, observe the following items:
• Main air lines (6) require a slight inclination of at least 1% in the direction of flow so that condensation water
may be drained through a valve (7) at the lowest point (manually or automatically).
• Branch pipes should be connected pointing upwards (5) in the case of a horizontal main line (6) - and in the case
of a vertical main line (4) not at the lowest point. Thus, any condensation water collected in the main line will be
prevented from flowing into the branch.
• Use maintenance units (3) consisting of air filter (3a) and oiler (3b).
Install the maintenance unit with an air connection of at least G 1/4 in the immediate vicinity of the compressed
air motor (1). Use a high-performance machine oil with a viscosity of 20 to 30 mm²/s in the oiler (3b). The oil
consumption should be 1 drop per minute as a minimum.
• The air filter (3a) requires regular maintenance during which the trapped condensation water is drained and the
filter cleaned.
• The compressed air motor will achieve maximum performance at 6 bar (85 psi). The pressure in the pneumatic
system exceeding 6 bar, a pressure regulator (3c) must be installed. Adjustment of the pressure regulator (3c)
must be effected with the motor running.
• Install an air hose (2) of 8 to 9 mm inside diameter between maintenance unit and compressed air motor so as
to minimize the pressure losses.
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